Changes that would make your class more fun.

for F/Ps I would like to see:

big bang with higher range and remove the charge (allow cast while jumping)
toggle magic guard with about 70% chance of not being dispelled
toggle elemental reset
10 hits mist eruption
clearer poison mist
make arcane aim work with the first hit

for warriors:
at first job, a skill that adds 40% stance passively
at third job, a party skill that adds 60% stance
make intrepid slash and blast hits 3 times separately, that way final attack would be even more useful
achilles back to at least DrK
make sacrifice a 4th job skill with higher damage, range, hitting more times and a better animation.
move rush to 2nd job